SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSINFINITI2019Q70 3.7 LUXE, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 12 (ENGINE CONTROL SYSTEM (5.6L) (DTC/CIRCUIT DIAGNOSIS) (9 OF 9))DTC/CIRCUIT DIAGNOSISHIGH PRESSURE FUEL PUMPCOMPONENT FUNCTION CHECK
2019 Infiniti Q70 3.7 Luxe, AWD

Component Function Check

2019 Infiniti Q70 3.7 Luxe, AWDSECTION Component Function Check
WARNING: This page is about a different variant/trim than selected.
  1. CHECK HIGH PRESSURE FUEL PUMP FUNCTION 

    SYMBOL WITH CONSULT

    1. Start engine.
    2. Check "FUEL PRES SEN V" in "DATA MONITOR" mode with CONSULT.

      Monitor Item

      Condition

      Values/Status

      FUEL PRES SEN V

      Engine speed: Idle

      820 - 1, 220 mV

      Engine speed: Revving engine from idle to 4, 000 RPM quickly

      820 - 3, 060 mV

    SYMBOL WITHOUT CONSULT

    1. Start engine.
    2. Check the voltage between ECM harness connector and ground.

      ECM

      Condition

      Voltage

      +

      -

      Connector

      Terminal

      Connector

      Terminal

      F117

      59

      F116

      10

      [Engine is running]

      • Warm-up condition
      • Idle speed
        NOTE: The pulse cycle changes depending on RPM at idle

      BATTERY VOLTAGE

      (11 - 14 V) SYMBOL

      SYMBOLGNSJPBIA3340Z-340Courtesy of NISSAN NORTH AMERICA, INC.

      [Engine is running]

      • Warm-up condition
      • Engine speed: 2, 000 RPM

      BATTERY VOLTAGE

      (11 - 14 V) SYMBOL

      SYMBOLGNSJPBIA3341Z-341Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Proceed to Diagnosis Procedure .

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.